113440231220 has 24 divisors (see below), whose sum is σ = 238261560264. Its totient is φ = 45369030656.

The previous prime is 113440231217. The next prime is 113440231231. The reversal of 113440231220 is 22132044311.

It can be written as a sum of positive squares in 4 ways, for example, as 6920243344 + 106519987876 = 83188^2 + 326374^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308669 + ... + 567588.

It is an arithmetic number, because the mean of its divisors is an integer number (9927565011).

Almost surely, 2^113440231220 is an apocalyptic number.

113440231220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113440231220 is an abundant number, since it is smaller than the sum of its proper divisors (124821329044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113440231220 is a wasteful number, since it uses less digits than its factorization.

113440231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882739 (or 882737 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 113440231220 its reverse (22132044311), we get a palindrome (135572275531).

The spelling of 113440231220 in words is "one hundred thirteen billion, four hundred forty million, two hundred thirty-one thousand, two hundred twenty".